Concept explainers
To discuss:
The mathematical relationship between peripheral resistance and vessel radius; why this related to the laminar flow of blood; and why it makes vasoreflexes such a powerful influence on the blood flow.
Introduction:
In order to keep the blood flowing in the artery, the heart must pulsate pressure. This is referred to as blood pressure (BP). The high blood pressure can lead to hypertension, and low blood pressure can lead to hypotension. This can be measured by using a sphygmomanometer. The resistance and pressure affecting the movement of blood or blood flow is called as peripheral resistance. The resistance in blood flow occurs due to the blood viscosity, vessel radius, and vessel length.
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Chapter 20 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- Why physical inactivity can lead to venouspooling; consequences of venous poolingarrow_forwardThe conductivity of the heartarrow_forwardHow pulmonary circulation differs fromsystemic circulation with respect to bloodpressure, capillary exchange, relative oxygenation of arterial and venous blood, andthe vasomotor response to hypoxiaarrow_forward
- significance and mechanisms of local neural control of cerebral blood flowarrow_forwardWhy veins are called capacitance vesselsand how this relates to the structural difference between veins and arteriesarrow_forwardHistological description of the different types of blood vessels. Explain each in long explanationarrow_forward
- Which vessels contribute most to altered systemic blood pressure when their smooth muscles contract or dilate,large muscular arteries,small muscular arteries,or arteriolesarrow_forwardPhysiology and Anatomy of Circulatory Systemarrow_forwardlocal direct control of blood flow through a tissuearrow_forward